Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN4MMV callsign genealogy
Currently held by Garganera, John M
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KN4MMV's current licensee, walking backwards.
- Garganera, John MNCgranted 2023-09-06cancelled 2024-02-10
Successor callsigns
Callsigns held now by people who previously held KN4MMV.
- Schulinck, Dennis PKYgranted 2018-06-12
All historical holders
Every license row we've seen with the callsign KN4MMV, oldest first.
- Schulinck, Dennis P KY2018-05-22 → cancelled 2018-06-12
- Garganera, John M NC2024-02-10 active